无机盐工业 ›› 2024, Vol. 56 ›› Issue (8): 9-18.doi: 10.19964/j.issn.1006-4990.2023-0516
郭凯花1,2,3(), 范雨薪1, 杨静1,2,3(
), 赵文立1,2,3, 贾原媛1,2,3, 王彦飞1,2,3(
)
收稿日期:
2023-10-30
出版日期:
2024-08-10
发布日期:
2024-09-26
通讯作者:
王彦飞(1977— ),男,教授,博士生导师,主要研究方向为工业结晶及海卤水资源综合利用;E-mail:wangyanfei@tust.edu.cn。作者简介:
郭凯花(1997— ),女,在读硕士研究生,主要研究方向为工业结晶及海卤水资源综合利用;E-mail:13312086657@163.com。
基金资助:
GUO Kaihua1,2,3(), FAN Yuxin1, YANG Jing1,2,3(
), ZHAO Wenli1,2,3, JIA Yuanyuan1,2,3, WANG Yanfei1,2,3(
)
Received:
2023-10-30
Published:
2024-08-10
Online:
2024-09-26
摘要:
光卤石冷分解结晶是国内生产氯化钾的主要工艺,但随着光卤石原矿品位的下降,原有技术生产的氯化钾产品出现了粒度变小、易聚结、纯度差且收率低等问题,已成为困扰氯化钾行业发展的难题。对比了不同地区钾盐原矿品质,结合Na+、K+、Mg2+//Cl--H2O四元体系及其子体系的热力学相平衡规律,概述了原矿品质对分解结晶过程析盐规律的影响,从分解-结晶耦合过程动力学角度,总结了不同品位光卤石冷分解结晶制备氯化钾过程的产品粒度及形貌调控关键因素及其作用机理。结合产品现行标准,提出低钠光卤石、含钠光卤石和高钠光卤石的新分类方法和对应的工艺选择策略,并对不同品位光卤石原矿的冷分解结晶新工艺进行展望,以期为行业健康发展提供理论指导与参考。
中图分类号:
郭凯花, 范雨薪, 杨静, 赵文立, 贾原媛, 王彦飞. 光卤石原矿品位对其冷分解结晶氯化钾过程影响浅析[J]. 无机盐工业, 2024, 56(8): 9-18.
GUO Kaihua, FAN Yuxin, YANG Jing, ZHAO Wenli, JIA Yuanyuan, WANG Yanfei. Analysis of effect of carnallite raw ore grade on its cold decomposition and crystallization of potassium chloride[J]. Inorganic Chemicals Industry, 2024, 56(8): 9-18.
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